• /
  • EnglishEspañolFrançais日本語한국어Português
  • Log inStart now

Browser agent release notesRSS

October 21
Browser agent v1.301.0

v1.301.0

Features

Switch to using NR fork of rrweb

Browser agent will now switch to using New Relic's forked version of rrweb for Session Replay instead of the original repository. This will allow browser team to custom tailor hotfixes for issues.

Bug fixes

Preserve agent attributes for log payloads

Adjust browser log payloads, such that agent-reserved attributes will take precedence over user-provided values if they happen to share the same name.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.301.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 131-141, Edge 131-141, Safari 17-26, and Firefox 133-143. For mobile devices, v1.301.0 was built and tested for Android OS 16 and iOS Safari 17-26.

October 14
Browser agent v1.300.0

v1.300.0

Features

Remove usage of the marks and measures feature flag

No longer gates the agent by an internal feature flag. Measures will be enabled for all users by default unless turned off through the application settings.

Reduce hasReplay attribute false positive rate

Only set "hasReplay" attribute once a successful session replay harvest has been observed to help reduce false positives.

Bug fixes

Update typings for interaction API to reflect waitForEnd

Fixes an issue where the typing file defining the .interaction API was not decorated correctly to account for the optional waitForEnd argument as documented.

Address issues with dynamic require and Rollup.js

Fixes an issue that led Rollup.js to spawn the error Error: Could not dynamically require ... when building pages that included the MicroAgent loader.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.300.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 131-141, Edge 131-141, Safari 17-26, and Firefox 133-143. For mobile devices, v1.300.0 was built and tested for Android OS 16 and iOS Safari 17-26.

October 7
Browser agent v1.299.0

v1.299.0

Features

Add Flutter supportability metric

Introduces a supportability metric to track browser agent usage in Flutter web applications.

Add user frustration signals to UserAction

Provide better insight into potential user frustrations for specific user actions via dead click and error click detections.

Evaluate the accuracy of cross-feature attribution

To support internal improvement benchmarks, add supportability metrics that evaluate the accuracy of attributes that indicate the state of a separate event, such as hasReplay or hasTrace.

Bug fixes

Fix recordReplay API inconsistencies

Fixes an issue where a late-called recordReplay API call would not successfully harvest data.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.299.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 130-140, Edge 130-140, Safari 17-19, and Firefox 132-142. For mobile devices, v1.299.0 was built and tested for Android OS 16 and iOS Safari 17-26.

September 19
Browser agent v1.298.0

v1.298.0

Features

Factor long tasks into soft nav base interaction span

BrowserInteraction under soft navigation ("SPA 2.0") will extend in duration beyond DOM modification time until the point wherein no long tasks have been observed for 5 seconds. JavascriptError and AjaxRequest are not yet associated with such interaction during this extended period beyond the end of the original heuristic.

Bug fixes

Force LCP to report the original page URL

Allow LCP to report its pageUrl distinctly from the harvest URL. An issue was observed where soft navigations occurring before the LCP harvest would report the current page URL instead of the original page URL tied to LCP. This change allows LCP harvest nodes to report the original URL, regardless of the current page URL. The change should apply both to the pageUrl and targetGroupedUrl attributes.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.298.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 130-140, Edge 130-140, Safari 17-19, and Firefox 132-142. For mobile devices, v1.298.0 was built and tested for Android OS 16 and iOS Safari 17-26.

September 17
Browser agent v1.297.1

v1.297.1

Bug fixes

Prevent double import of Session Replay aggregate class

Fixes an issue that was found where the Session Replay aggregate class could be double imported when using the newrelic.recordReplay API method while preloading was enabled.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.297.1 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 130-140, Edge 130-140, Safari 17-19, and Firefox 132-142. For mobile devices, v1.297.1 was built and tested for Android OS 16 and iOS Safari 17-18.5.

September 10
Browser agent v1.297.0

v1.297.0

Features

Prevent early harvests when in retry period

Prevent the agent from harvesting early when being rate limited. If the ingest service returns a 429, the agent will replace its data and try the harvest again later. While that is happening, it will no longer be able to harvest early as new data comes in, until it successfully harvests.

remove newrelic meta attribute

Remove the reporting of the __newrelic meta attribute from outgoing replay payloads. This is being conducted as a measure to help save billable bytes for customers and reduce cost of use for Session Replay functionalities.

Bug fixes

Fix exceptions for null bodies arising from empty harvests

A change has been made to enforce that all cleaned payloads ensure a valid output. Before, an empty string passing through the body cleaning process could throw an error as the mechanism would return the body as null. Now empty strings will pass through untouched, allowing further processing to apply successfully.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.297.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 129-139, Edge 129-139, Safari 17-19, and Firefox 131-141. For mobile devices, v1.297.0 was built and tested for Android OS 16 and iOS Safari 17-18.1.

August 19
Browser agent v1.296.0

v1.296.0

Features

Harvest traces early

Update agent to handle session traces the same way other features handle data as of 1.294.0, by allowing harvests at 16kb of size.

Bug fixes

Remove event buffer inspection event

Removes the event buffer inspection event to avoid a memory leak on using console.log with the newrelic window event listener.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.296.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 129-139, Edge 129-139, Safari 17-19, and Firefox 131-141. For mobile devices, v1.296.0 was built and tested for Android OS 16 and iOS Safari 17-18.1.

August 4
Browser agent v1.295.0

v1.295.0

Features

Add error cause detection

Detect and report the cause attribute on captured JavaScriptError events. If the cause is an instance of an Error, the stack trace will be captured, otherwise the stringified contents of the cause will be reported. This will be queryable in JavaScriptError events under the attribute cause.

Bug fixes

Add monkey-patching warnings

Added detection and warnings for when expected globals have been monkey-patched before the agent has been executed on the page. This can cause unexpected behaviors and the intent is to inform customers of this behavior.

Calculate first and last timestamps from raw data

Ensure the agent manually calculates the first and last timestamps of a SessionReplay payload before harvesting to help improve consistency on the UI replayer.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.295.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 128-138, Edge 128-138, Safari 17-19, and Firefox 130-140. For mobile devices, v1.295.0 was built and tested for Android OS 16 and iOS Safari 17-26.

July 23
Browser agent v1.294.0

v1.294.0

Features

Harvest early

The agent will now be able to trigger early harvests if certain criteria is met. This will help ensure that more payloads are kept and memory leaks are prevented. The agent will initiate an early harvest when a feature buffer size reaches 16KB, otherwise it will continue to harvest every 30 seconds as before. This new behavior will apply to the following events:

  • AjaxRequest
  • BrowserInteraction
  • BrowserPerformance
  • Custom Events
  • Log
  • PageAction
  • PageViewTiming
  • SessionReplay
  • UserAction

A separate effort will be conducted to enable early harvesting for timeslice metrics, javascript errors and session traces which use other mechanisms for storage in the agent.

Bug fixes

report empty previousUrl as undefined

The previousUrl attribute on BrowserInteraction events was reported as an empty string is cases where document.referrer is empty. This caused URL grouping to apply grouping on an empty string, leading to meaningless groups being appended to previousUrl. previousUrl is now reported as undefined to allow URL grouping to skip empty URLs.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.294.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 128-138, Edge 128-138, Safari 17-19, and Firefox 130-140. For mobile devices, v1.294.0 was built and tested for Android OS 16 and iOS Safari 17-26.

July 1
Browser agent v1.293.0

v1.293.0

Features

Add "long tasks" internal message

Add an internal message indicating if a wrapped function qualifies as a "long task". This is to be used later in agent features to enhance future behaviors.

Emit SM on rum response invalid timestamps

Emit a supportability metric on receiving an invalid timestamp in the rum call response.

Bug fixes

Address issue keeping distributed traces from being disabled

Addressed a bug where the agent was able to capture distributed traces, even when distributed_tracing: false was supplied in the configuration.

Support statement

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New browser agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, v1.293.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 128-138, Edge 127-137, Safari 17-19, and Firefox 129-139. For mobile devices, v1.293.0 was built and tested for Android OS 16 and iOS Safari 17-26.

Copyright © 2025 New Relic Inc.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.